Mechanism for guiding airflows within optical disc drive
The present invention relates to a mechanism for guiding airflows within an optical disc drive, in which the optical disc drive comprises a chassis having a side wall and a tray for loading or unloading a disc. The guide mechanism of the present invention includes at least one guide passage which is protruded outwardly from the side wall of the chassis and has two guiding oblique surfaces at its both ends. Further, the guide passage is positioned on an extended line of a diameter of the disc normal to the side wall of the chassis. The airflows produced by the revolving disc is guided to flow through the guide passage. According to the guide mechanism the shocks, jarring, and noise of the optical disc drive is minimized.
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This Non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No(s). 094142957 filed in Taiwan, Republic of China on Dec. 6, 2005, the entire contents of which are thereby incorporated by reference.
BACKGROUND OF THE INVENTION1. Field of Invention
The present invention relates to a mechanism for guiding airflow within an optical disc drive and more particularly to a mechanism disposed in an optical disc drive for guiding airflows produced by a revolving disc.
2. Related Art
A conventional optical disc drive is shown in
For assembling into a computer, the chassis 13 is usually designed as a rectangle, thus when the disc D having a diameter of 12 cm is carried into the chassis 13, there is a narrow area between the disc D and the long side wall of the chassis 13 (see
Moreover, when the optical disc drive is intended to be used in a vertical position, a projection 133 is typically formed on each long side of the chassis 13 for stably positioning the disc D on the tray 12 so as to facilitate the spindle to precisely insert into the center hole of the disc D. In other words, the provision of the projections 133 aims at correctly positioning the disc D on the tray 12. However, the projections 133 may further decrease the space in the narrow areas. As such, turbulence becomes more serious, resulting in a worse condition of the generated shocks, jarring, and noise. Thus, there still needs a solution for resolving the above problems.
SUMMARY OF THE INVENTIONIt is an object of the present invention to provide a guide mechanism for guiding the airflows in an optical disc drive to balance the air pressure above the optical disc resulted from the airflows produced by the revolving disc and minimize the shocks, jarring, and noise when operating the optical disc drive.
The present invention provides a guide mechanism for guiding the airflows in an optical disc drive, wherein the optical disc drive includes a chassis including a side wall and a tray for loading and unloading a disc. The guide mechanism comprises at least a guide passage which is protruded outwardly from the side wall of the chassis and has two guiding oblique surfaces positioned at its both ends. Further, the guide passage is positioned on an extended line of a diameter of the disc normal to the side wall of the chassis. The airflows produced by the revolving disc is guided to flow through the guide passage.
According to the preferred embodiment of the present invention, the guide mechanism further provided with a rib which is provided in the guide passages for positioning the loaded disc when the optical disc drive is intended to be used in a vertical function.
According to the preferred embodiment of the present invention the guide passage is further divided into a front channel and a rear channel, and the airflows enter the guide passage at the front channel and exit the guide passage at the rear channel.
According to the preferred embodiment of the present invention an angle formed between each of the guiding oblique surfaces and the side wall of the chassis is an obtuse angle, and a length of the front channel is longer than that of the rear channel.
The above and other objects, features and advantages of the present invention will become apparent from the following detailed description taken with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Referring to
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While the invention herein disclosed has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.
Claims
1. A guide mechanism for guiding airflows within an optical disc drive, in which the optical disc drive includes a chassis having a side wall and a tray for loading or unloading a disc, the guide mechanism comprises:
- at least one guide passage, protruded outwardly from the side wall of the chassis and having two guiding oblique surfaces at its both ends,
- wherein the guide passage is positioned on an extended line of a diameter of the disc normal to the side wall of the chassis,
- thereby airflows produced by the revolving disc is guided to flow through the guide passage.
2. The guide mechanism of claim 1, which further comprises a rib provided in the guide passage for positioning the loaded disc stably.
3. The guide mechanism of claim 2, wherein the rib is vertically protruded on the chassis.
4. The guide mechanism of claim 1, wherein the guide passage is divided into a front channel and a rear channel by the extended line of a diameter of the disc normal to the side wall of the chassis, and the airflows enter the guide passage at the front channel and exit at the rear channel.
5. The guide mechanism of claim 1, wherein an angle formed between each of the guiding oblique surfaces and the side wall of the chassis is an obtuse angle.
6. The guide mechanism of claim 4, wherein a length of the front channel is longer than that of the rear channel.
Type: Application
Filed: Mar 28, 2006
Publication Date: Dec 14, 2006
Patent Grant number: 7681211
Applicant:
Inventors: Wen Wang (Hsinchu), Jui Chuang (Hsinchu), Jeng Chen (Hsinchu), Yu Chien (Hsinchu)
Application Number: 11/390,146
International Classification: G11B 33/14 (20060101);